There's nothing special about a random woman not recognizing him CUZ HE WAS IN A RANDOM PLACE! It wasn't like Kanye failed to be recognized on a red carpet..
He was in a nondescript street full of normal people! Look there's another random dude nearby holding baguettes!
In other words - much ado about nothing (TMZ and X17 exaggerating as usual - especially TMZ has a notorious tradition of inventing a fake controversy out of nothing in order to extend the commotion of a real controversy (in this case the real one being the Kanye-Kimmel bustup. Desperate ass TMZ is basically trying to squeeze out the last droplet out of that sack of hot mess.